Severe stability and clock issues with non-current ROS. Works like a top on 3.19 though. Also, if using an SATA-to-CF converter, the license key for the CF card in an R200 will only transfer to other R200's without Mikrotik reissuing it.

CPU Intel Core2 Duo 2,93GHz, 2GB RAM DDR2, 6 x Intel 1Gbps PCIe NIC, 1U size, works good as a BGP router. If you have troubles with MT 5.x on it, try to reset BIOS (by battery remove). Enable ACPI in the BIOS. It is disabled by default in Power Management Setup menu. Without this system does not boot (MT 5.x).